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Publication numberUS4714088 A
Publication typeGrant
Application numberUS 07/055,357
Publication dateDec 22, 1987
Filing dateMay 29, 1987
Priority dateMay 29, 1987
Fee statusLapsed
Publication number055357, 07055357, US 4714088 A, US 4714088A, US-A-4714088, US4714088 A, US4714088A
InventorsJames M. Ivins
Original AssigneeIvins James M
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Water saving float for a water tank
US 4714088 A
Abstract
A water saving float for a water tank which includes a connector that connects the float to the cut-off rod. The float is adjustable for different settings so that the water height in the tank may be controlled. The adjusting device is out of the water so the hands do not get wet during adjustment.
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Claims(15)
What is claimed and desired to be protected is as follows:
1. A water saving float assembly for selecting various water levels in a water closet which comprises: a float means, a threaded rod upon which said float means is adjustably secured for determining the various water levels, a link connecting block through which a portion of said rod extends for adjusting the height of said float, an adjusting wheel secured to said rod above said link connecting block and the water levels for controlling the adjustable height of said rod, a connecting link secured at one end to said link connecting block, a connecting adaptor for connecting another end of said connecting link, said adaptor being adjustably connected to a valve control rod of a water control valve whereby the amount or water allowed to flow into said water closet will be controlled by the adjustment of said float means as a result of the above adjustable elements.
2. A water saving float assembly as set forth in claim 1 which includes means for restricting the length of said rod portion that extends through said link connecting block, and said rod portion is without threads thereon.
3. A water saving float assembly as set forth in claim 2 which includes at least one float.
4. A water saving float assembly as set forth in claim 2 which includes two oppositely disposed floats.
5. A water saving float assembly as set forth in claim 1 in which said rod portion that extends through said link connecting block is threaded.
6. A water saving float assembly as set forth in claim 5 which includes at least one float.
7. A water saving float assembly as set forth in claim 5 which includes two oppositely disposed floats.
8. A water saving float assembly as set forth in claim 1 in which said connecting adaptor is threaded onto said float rod.
9. A water saving float assembly as set forth in claim 8 which includes at least one float.
10. A water saving float assembly as set forth in claim 8 which includes two oppositely disposed floats.
11. A water saving float assembly as set forth in claim 1 in which said connecting adaptor is a sleeve that slides onto said float rod and is held in place by a set screw.
12. A water saving float assembly as set forth in claim 11 which includes at least one float.
13. A water saving float assembly as set forth in claim 11 which includes two oppositely disposed floats.
14. A water saving float assembly as set forth in claim 1 which includes at least one float.
15. A water saving float assembly as set forth in claim 1 which includes two oppositely disposed floats.
Description

This invention is directed to a float for a water tank and more particularly to a float which will permit the correct amount of water to enter a tank for each flush.

Heretofore, various devices have been used to try to save water in a flush tank. Such devices used have been containers which are filled with water and placed in the tank so that the filled container displaces the same amount of water which is not flushed. People have placed non-floating bricks, rocks, cement blocks or any such solid devices which will displace the water. Other flush tanks have been provided with various mechanical devices which cooperate with the fill valve to turn the water off after a certain amount has entered the tank. Such devices may be found in the following prior art U.S. Pat. Nos. 1,547,255; 1,919,700; 2,847,026; and 3,385,317. These devices are fixed in place or are not easily adjusted for different amounts of water; therefore, too much water may still enter the tank and be wasted.

It is therefore an object of the invention to provide a water saving device which can be adjusted for precise amounts of water which will be sufficient for flushing.

Another object is to provide an adjustable float mechanism that can be assembled by an inexperienced person and not require a plumber for the installation.

Yet another object is to provide an adjustable float which may be made of an inexpensive material such that the cost will be at a minimum.

Still another object is to provide a float mechanism which may be easily adjusted for setting the amount of water that will enter the tank.

These and other objects and advantages will become obvious with reference to the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a water saving device having a single float.

FIG. 2 illustrates a modification having two floats.

DETAILED DESCRIPTION

Now referring to the drawing there is shown in FIG. 1 a float 10 which is provided with a screw thread end 12 into which a threaded rod 14 is threaded. The upper end of the threaded rod is smoother and passes through a link holder block 16. A wheel 18 is secured to the upper end of the non-threaded end of the rod close to the upper face of the block 16. The rod may have a collar 20 secured thereto just below the block or the rod may be of a larger size below the block such that a shoulder rides along the bottom face of the block. Obviously, a washer could be placed between the shoulder and the bottom face of the block to replace the collar and to prevent wear on the block. A threaded float rod connecting adapter 22 is provided to be threaded onto the normal float rod 24 connected to the control valve of the tank, not shown. The connecting adapter 22 has a bifurcated end 26 to which one end of a link 28 is connected by a suitable pin. The other end of the link connects with the link holder block 16 and is pivotable about a securing pin. The link is shaped such that the bottom heel contacts the bottom of the opening in the link holder blocks so that the link end connected to the block is restricted in the height to which it can be raised. The wheel may be threaded onto a threaded end, press filled thereon, or secured thereto by any suitable means.

In operation, the link 28 connects the float assembly to the float rod 24 by the connector adaptor 22. The wheel may be rotated to the right or left to raise or lower the float depending on the thread cut on the rod. Obviously, when the float is raised more water will enter the tank because the cut-off valve will be operated later. Lowering the float will cause less water to enter the tank.

Some control valves are provided with float rods that are not threaded. In this case the connecting adaptor may be made as a sleeve 30 which fits over the rod and which may be held in place by use of a wing screw 32 such as shown in FIG. 2. The sleeve shown in FIG. 2 has a protruding bifurcated connector 34 extending from the bottom to which one end of a link 36 is connected to link connecting block 38. The link connecting block 38 may be substantially the same as that of block 16 with the pivot connection and the end of the link formed such that the link can pivot only so far to restrict the height of the connecting end. In FIG. 2, there are shown two oppositely disposed floats 40, 42, one on each side of the rod with a threaded connector 42 that secures the floats together. The rod may extend through the block 38 the same as shown in FIG. 1 and has a wheel 44 connected to the upper end for rotating the rod into or out of the float connector 42. Since there are two floats as the rod is rotated, one of the floats will be forced against the end or side of the tank and will be held in place during rotation of the rod by the wheel. In order to move the float from contacting the tank the wheel may be rotated slightly in the opposite direction until the floats parallel the tank wall in which it was in contact. The device as shown in FIG. 2 may be adjusted without getting the hands wet because the wheel will be above the water.

The link may be made with a stop thereon which will limit the upward movement relative to the connecting adaptor or either the connecting adaptor may be provided with a downwardly extending stop which would limit the upward swing of the link.

The relationship between the float rod, the float assembly, and the end of the tank must be such that the float assembly will have room to move with respect to the float rod and the link.

In the device as shown in FIG. 1, the block could be threaded as shown in FIG. 2 and the rod could be threaded through the block. Then the collar would be dispensed with. In this manner the float is adjusted first on the rod to a certain height, then the wheel is rotated for a finer adjustment and without getting the hands wet. In such a device, the wheel will be removed a distance from the block in order to provide room for adjustment. In such a device, instead of the collar, a lock nut could be used which would secure the rod in place once the adjustment has been made.

The block, as shown in FIG. 2, is threaded. Thus, the rod can be adjusted in the block simultaneously with the adjustment in the float. In the device of FIG. 1 with a threaded block, only the rod will be adjusted in the block unless the float is held in place during the adjustment. In FIG. 1, one would have an option of adjustment of the float, by the wheel or by both the float and the wheel. The float is held in place while rotating the wheel.

It is to be understood that the invention is not restricted to the precise construction shown and that various changes may be made within the scope of the teaching of the invention.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1547255 *Dec 31, 1921Jul 28, 1925Adolph MuellerFloat valve
US1788827 *Aug 19, 1926Jan 13, 1931Remington Oil Engine IncSafety control device for liquids
US1919700 *Mar 26, 1931Jul 25, 1933Olof LundbergWater closet
US1972331 *Mar 2, 1932Sep 4, 1934Max Dean JosephRegulating means for the water level of flush boxes
US2847026 *Nov 4, 1957Aug 12, 1958Lynn H EwingFloat valve construction
US3331387 *Jun 24, 1964Jul 18, 1967Manuel WaltersFloat control means for use in water closets and the like
US3385317 *Oct 22, 1965May 28, 1968Howard G AngleZeta-adapter for water closets
US4335741 *Feb 11, 1981Jun 22, 1982Nasser Karim WFluid level controller
US4640307 *Nov 28, 1983Feb 3, 1987Roberts & Associates Water And Waste Treatment LimitedFloat valve
AU23565A * Title not available
FR377535A * Title not available
GB199058A * Title not available
GB467429A * Title not available
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IT260667A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5070548 *Jun 12, 1991Dec 10, 1991Huhnke Beverley MWater-saving tank construction, attachment and method for flush toilets
US5450881 *Dec 3, 1993Sep 19, 1995Murray Equipment, Inc.Liquid chemical measuring and distribution system
US5632313 *Jun 6, 1995May 27, 1997Murray Equipment, Inc.Liquid chemical measuring and distribution system
US5758799 *Sep 27, 1996Jun 2, 1998Murray Equipment, Inc.Liquid chemical measuring and distribution system
US6045010 *Jun 9, 1998Apr 4, 2000Murray Equipment, Inc.Hand powered liquid chemical measuring and dispensing system
US6666228 *Jun 12, 2003Dec 23, 2003Feiyu LiBall cock assembly
US6953050 *Oct 15, 2003Oct 11, 2005Cavagna Group Switzerland SaFloat, particularly for level control in bottles of liquefied gas and the like
US9181688 *Apr 16, 2012Nov 10, 2015Fluidmaster, Inc.Toilet valve float mechanism
US20040075632 *Oct 14, 2003Apr 22, 2004Au Optronics Corp.Liquid crystal display panel and driving method thereof
US20050081919 *Oct 15, 2003Apr 21, 2005Davide CavagnaFloat, particularly for level control in bottles of liquefied gas and the like
US20120260412 *Oct 18, 2012Fluidmaster, Inc.Toilet Valve Float Mechanism
CN102817404A *Jan 13, 2012Dec 12, 2012北京建筑工程学院Toilet water tank component with gear-rack type flow regulating function
CN102817404BJan 13, 2012Aug 13, 2014北京建筑工程学院Toilet water tank component with gear-rack type flow regulating function
WO2012145331A1 *Apr 17, 2012Oct 26, 2012Fluidmaster, Inc.Toilet valve float mechanism
Classifications
U.S. Classification137/426, 137/423, 137/434, 137/429
International ClassificationE03D1/33, F16K31/18, E03D1/14
Cooperative ClassificationY10T137/7404, Y10T137/7423, Y10T137/7413, F16K31/18, E03D1/14, Y10T137/7439, E03D1/33
European ClassificationE03D1/14, E03D1/33, F16K31/18
Legal Events
DateCodeEventDescription
Jul 23, 1991REMIMaintenance fee reminder mailed
Dec 22, 1991LAPSLapse for failure to pay maintenance fees
Feb 25, 1992FPExpired due to failure to pay maintenance fee
Effective date: 19911222